avformat/librist: clarify and limit buffer_size

[ffmpeg] / doc / protocols.texi

diff --git a/doc/protocols.texi b/doc/protocols.texi
index eaf7b5260888f0e88694ad954d8ea62dde54d052..3644fe3dd69486c3b371c35fcf5ad7e15c05fdb8 100644 (file)
--- a/doc/protocols.texi
+++ b/doc/protocols.texi
@@ -712,7 +712,9 @@ This one is default.
 @end table
 
 @item buffer_size
-Set internal RIST buffer size for retransmission of data.
+Set internal RIST buffer size in milliseconds for retransmission of data.
+Default value is 0 which means the librist default (1 sec). Maximum value is 30
+seconds.
 
 @item pkt_size
 Set maximum packet size for sending data. 1316 by default.